Every product out there (not just video games) has a sales pitch. This is no different.
IOI really does need to stress the fact that this is a game about assassination. Otherwise people (hell even myself included) would just assume that it's more of the same, running away from the police, running away from the ICA, running away from whoever else, like the previous installment.
Disclaimer --(No, I'm not saying that is all there was. But it did have quite a bit of it).